Machine for embroidering, sewing, and openwork stitching, of the crank type



May 22; 1928. 1,670,978

F. MOREL momma FOR manoxmmue, snwme AND OPENWORK S'Ii'ICHING, OF THECRANK TYPE Filed Feb. 5, 1927 4 Sheets-Sheet 1 May 22. 1928. 1,670,978

F. MOREL MACHINE FOR EMBROIDERING, SEWING AND OPENWORK STITCHING, OF THECRANK TYPE Filed Feb. 5, 1927 4 Sheets-Sheet 2 1,670,978 F. MOREL FiledFebf5, 1927 4 Sheets-Sheet May 22, 1928.

MACHINE FOR EMBROIDERING, SEWING AND OPENWORK STITCHING, OF THE CRANKTYPE May 22, 1928. 1,670,978

F. MOREL MACHINE FOR EMBROIDERING, SEWING AND OPENWORK STITCHING, OF THECRANK TYPE Filed Feb. 5, 1927 4 ShGQtS-Shet 4 Patented May 22, 1928.

mew5mm PATENT-OFFICE.

FELIX MOREL, OF FAYETTAS; FRANCE, ASSIGNOB T0 ANCIENS ETABLISSEMENTS R.

CORNELY & COL, (SOCIETE ANONYME), OF PARIS, FRANCE. i

MACHINE roe nmnaornname, sawme, AND OPEN-WORK smrcn me, or THE camApplication filedlebnuary' 5, 1927,8erialNo. 1166,183,,and in FranceJanuary 10, 1927.

Thisinventiom relates to: new and: useful improvements in machines forembroidering sewing and open-work stitching, of the crank type: I Inmachines of this type the presser foot which feeds the fabric is rigidlysecured to a presser foot bar, is caused to oscillate about twohorizontal axes perpendicular to each other, and is also given avertical reciprocating motion during which it is guided by a hinge orpivoting piece which is slidable on a verticaltube.

Heretofore, these pivoting pieces have been constructed in a manner tocreate inherent disadvantages such as for instance the rapid wear of thepiece with the resultant irregularity of the stitching.

Furthermore, in such prior machines, it has been found in practice thatsuch pivoting elements or pieces are constructed in a manner to producecertain difliculties during the trimming operation.

The present invention relates particularly to improvements in thepivoting piece or element whereby such difiiculties are obviated.

The following description with reference to the appended drawings whichare given by way of example shows the manner in which the invention maybe carried into effect.

Fig. 1 is a side elevational view of the head plate of the machine,provided with the improved device according to the present invention.Fig. 2 is a like view of the hinge or pivoting element according to theinvention, and Figs. 3 and 5 are corresponding end elevational and planviews.

Fig. 4 is a sectional view taken on the line YY of Fig. 5.

Fig. 6 is a sectional view taken on the line ZZ of Fig. 2. Figs. 7 and 8are respectively elevational and plan views of said hinge or pivotingelement. Figs. 9 and 10 are views of the internal member of saidpivoting'element in side and end elevation.

The hinge G which is extended by the shank I (Fig. 4), is mounted in abearing element D in which is pivotally' mounted the shank I of the saidhinge C. The bearing element D is rigidly secured to the slide of thepresser foot P which is givena vertical reciprocating motion. a

. In the interior ofthe-hinge C, which is made incone piecaflis disposedamember E, shown in eievational and plan view in Figs. 9 and 10, itbeing pierced with a bore of such diameter that it is slidable withoutplay alon the tube B of the machine. The said mem er E is provided withtwo bosses e e whereof each is pierced with a smooth aperture; saidmember E is maintained in the interior of the hinge C by means of twoscrews WV 'W, and for this purpose the shank I of the hinge C is drilledand tapped for the insertion and maintenance of the screw the hinge C isfurther provided with a tapped boss in which is engaged the screw l/V.The said screws are terminated by smooth cylindrical parts engaging inthe respective bosses e e of the member E, which are pierced with smoothholes.

It is further noted that the member A must oscillate on the axis XX(Fig. 5), and to this end the hinge C carries two bosses pierced withtwo smooth holes in which are engaged the respective smooth ends of thescrews W WV which are secured in suitable bosses formedon the member A.This device provides an approved suspension on the Gardan principle, andthe member A may thus oscillate on the axis X-X or on the axis YY, or onany intermediate axis.

The member E serves as a rigid axle for the whole system, since it isadjusted without play upon the tube B, as stated, and this member guidesthe hinge C; with this arrangement, the hinge C cannot be moved in itsown plane, and the desired result will be thus obtained. i This deviceallows the'vertical reciprocating motion of the member C, which isnecessary for the functioning of the ma chine. When the member Aoscillates on XX, the screws WV VV form an axis of oscillation, but whenthe member A oscillates on Y-Y, the hinge C will turn by means of itssmooth part in the bearing D,

so that the members E and C may assume a relative displacement, due tothe two screws W WV forming pivot axles.

The general pivoting device or hinge when thus arranged, is enabled tooscillate on Furthermore, the efiects of wear will herein be manifestafter a much longer time, as

compared with the device specified in my aforesaid patent application,since the bearing surfaces are very large, and the device is quite rigidby reason of the one piece construction of the hinge C.

What I, claim is:

In machines for sewing, embroidering and open-work, of thecrank-operated type, provided with a vertical guiding tube and a presserfoot bar, prising a recess, a

a pivoting element commember disposed in said recess and pierced with anaperture having the same diameter as the tube of the machine, bossesprovided on said member, and smooth holes formed in said bosses, screwshaving smooth ends which are engaged in said holes, two other bosseswith smooth holes, provided on the said pivoting element, screws havingcylindrical ends which are disposed in the said holes, and bossesprovided on the said presser 'iootbar', in whichflthe said screws areengaged.

In testimony whereof I have signed this specification.

"FELIX MoRELf

